Dragging the upper edge of the terminal window down should resize the Terminal window down to a minimum height and stop there once it is reached. The window is resized correctly, however, once it reaches its minimum size it starts *moving* downwards on any move of the pointer. Also, possibly a related issue, the Terminal window *sometimes* resizes down to a minimum height when the panel changes orientation from vertical (left) to horizontal (bottom). Easiest to reproduce (here) with maximized terminal window and row_size=28px and nrows=3.
Not sure if that's a Terminal issue, could be something wrong with Xfwm4. Found a possibly related problem with gnome-terminal. If gnome-terminal is open, closing and opening a panel (killall xfce4-panel;xfce4-panel) makes the window shrink in size (height). This is similar to what I've seen in Terminal, except that Terminal window was shrinking immediately and randomly.
Seems like these are two similar but unrelated issues: #2 happens only with indicator-plugin displaying appmenu (aka global menu). Both gnome-terminal and Terminal respond the same way by rising the bottom edge of the window by 0.5~1 line every time panel is switch off/on. #1 occurs only in Terminal and doesn't depend on appmenu being active or not.
I find that gnome-terminal often opens with a slightly smaller size than that specified in the --geometry arg. Eg if I specify 132x48 it might open at 131x46. When I check the exact size by clicking on a window edge, it displays the size, but then when I release the click the window shrinks a few columns + rows. This happens every time I click on the edge - it just gets smaller and smaller (without being dragged at all). We are using gnome-terminal 3.4.1.1 in Xfce 4.10.0 (ppa) in LTSP thin clients on Ubuntu 12.04LTS LTSP Server, with xubuntu-desktop.
I forgot - I'm running the 3.5.0-23-generic x86_64 kernel (for better Intel graphics support). Still, GT is OK in Unity on console, but has this problem in Xfce both on the thin clients and the console.
I think this might only happen when your preferred terminal is gnome-terminal (which might be the case when you install Ubuntu, then add Xfce). If I set the default terminal and the various icons and keyboard shortcuts to run xfce4-terminal instead of gnome-terminal, the weird geometry problems don't occur for me.
An easy way to reproduce it is to: - open xfce4-terminal (0.6.2 here) - open xfce4-appearance-settings - repetitively click on e.g. Greybird and Numix styles and observe xfce4-terminal window shrinking in size.
I can confirm #1 for xfce4-terminal 0.6.3 (Xfce 4.12) I also happens when using openbox but the window will only move one time when reaching the minimum height.
Are the issues still present in git or 0.6.90 version?
What about 0.8.0?
Cannot reproduce here.